{"id":92847,"library":"rumale-preprocessing","title":"Rumale Preprocessing","description":"Provides preprocessing techniques such as L2 normalization, standard scaling, and one-hot encoding with Rumale interface.","status":"active","version":"2.1.0","language":"ruby","source_language":null,"source_url":"https://github.com/yoshoku/rumale","tags":["machine-learning","preprocessing","scaling","encoding"],"install":[{"cmd":"gem install rumale-preprocessing","lang":"bash","label":"gem install"},{"cmd":"# Gemfile\ngem 'rumale-preprocessing', '~> 2.1.0'","lang":"ruby","label":"Gemfile"}],"dependencies":[],"imports":[{"symbol":"Rumale::Preprocessing","correct":"require 'rumale/preprocessing'"}],"quickstart":{"code":"require 'rumale/preprocessing'\nscaler = Rumale::Preprocessing::StandardScaler.new\ndata = Numo::DFloat[[1.0, 2.0], [3.0, 4.0]]\nscaled = scaler.fit_transform(data)\nputs scaled.inspect","lang":"ruby","description":"Standardize features by removing the mean and scaling to unit variance."},"warnings":[],"env_vars":null,"search_vec":"'encod':16,25 'hot':15 'interfac':19 'l2':8 'learn':22 'machin':21 'machine-learn':20 'normal':9 'one':14 'one-hot':13 'preprocess':2,4,23 'provid':3 'rumal':1,18 'scale':11,24 'standard':10 'techniqu':5","created_at":"2026-06-19T09:39:13.656024+00:00","updated_at":"2026-06-19T09:39:13.656024+00:00","problems":[],"ecosystem":"rubygems","meta_description":null,"install_score":null,"quickstart_score":null,"quickstart_tag":null,"pypi_latest":null,"cli_name":null,"cli_version":null,"type":"library","homepage":"https://github.com/yoshoku/rumale","github":"https://github.com/yoshoku/rumale","docs":"http://www.rubydoc.info/gems/rumale-preprocessing/","changelog":null,"pypi":null,"npm":null,"openapi_spec":null,"status_page":null,"smithery":null,"categories":["utility"],"base_url":null,"auth_type":null,"provenance":{"verified_status":null,"verified_at":null,"last_verified":"2026-06-19","next_check":"2026-12-16","install_tag":null}}